If you under-cool your Mac, you will do nothing but burn up your components and kill your hardware. If you over-cool your mac, you will do nothing but wear out your fans and (eventually) kill your hardware, and, meanwhile, lower your battery life.

Apple's engineers are better at this than you. Really. The default settings are the best ones for your hardware and warranty.

Actually Im turning them up a little. The default setting is 2000rpm and Im running them at 3000 rpm. Do you really think that will burn them out early?

Tom

You are simply placing undue wear on your fans. They are thermostatically controlled and require no user-intervention. I too would recommend that you just leave them alone. Fans have a definite MTBF (mean time before failure). The more you use them, the quicker they will eventually fail.

Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!

You are simply placing undue wear on your fans. They are thermostatically controlled and require no user-intervention. I too would recommend that you just leave them alone. Fans have a definite MTBF (mean time before failure). The more you use them, the quicker they will eventually fail.

Ditto. Apple sets up the fans to yield the best performance/longest life.

I got smc fan control, because my MBP while ripping DVD's was heating up to +80 C and the fans were only going at 3200 rpm, and the case felt like you could cook an egg on it, got SMC and turned up the fans to 4300 rpm and it brought the temp down to ~72 C. I have no problems with the controller.